CMA MUSIC FESTIVAL: COUNTRY'S NIGHT TO ROCK - This summer will heat up when Walt Disney Television via Getty Images puts a spotlight on Nashville for the hottest music event of the year, "CMA Music Festival: Country's Night to Rock." Filmed June 9-12, today's most exciting Country Music stars hit the stage during a four-day party and celebration of America's music for a special that will air SUNDAY, August 14 (8:00-11:00 p.m., ET) on the Walt Disney Television via Getty Images Television Network. (Photo by Jon Lemay/Walt Disney Television via Getty Images)BLAKE SHELTON, GARTH BROOKS